Check those grounds
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Senior User
Joined: May 2007
Posts: 446
Likes: 2
Check those grounds
Last week I lifted the hood on my rig and cleaned all the ground wires to the chasis I could get to easily. The one that goes from the firewall to the back of the engine, I wasn't able to get to the end on the back of the block. Shouldn't be too bad on a hoist.
We went for a little 300 mile cruise yesterday with a 700 lb quad in the back. The first thing I noticed was that it seemed to accelerate easier. Less throttle to get from 30 to 70 mph.
The biggest difference was how smooth it is, especially at higher Rs. When it would get up in the 3k and over range the engine is MUCH smoother and quiter.
I won't say it has more power, but it will hold speed better on the hills in OD than it did before.
Milage was 11.9. This is about as good as it ever is without the quad, not that the extra load should make much difference. The trip was about 100 miles of interstate at 75, 30-40 around town and the rest on 2 lanes at 70ish with maybe 40 miles of slower mountain roads at 40-60.
Oh and the lie-o-meter was back to reading .8 mpg high, not the 1.5+ it has been lately.
We went for a little 300 mile cruise yesterday with a 700 lb quad in the back. The first thing I noticed was that it seemed to accelerate easier. Less throttle to get from 30 to 70 mph.
The biggest difference was how smooth it is, especially at higher Rs. When it would get up in the 3k and over range the engine is MUCH smoother and quiter.
I won't say it has more power, but it will hold speed better on the hills in OD than it did before.
Milage was 11.9. This is about as good as it ever is without the quad, not that the extra load should make much difference. The trip was about 100 miles of interstate at 75, 30-40 around town and the rest on 2 lanes at 70ish with maybe 40 miles of slower mountain roads at 40-60.
Oh and the lie-o-meter was back to reading .8 mpg high, not the 1.5+ it has been lately.
Thread Starter
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Senior User
Joined: May 2007
Posts: 446
Likes: 2
I was a little suprised at the results too. Atrip to GF and back this morning confirmed them though. Just flat rolls along easier at light throttle cruise.
Two things headed me that direction. One was a similar expeience with a Chev big block a few years ago. Bad grounding between the engine and chasis was playing all kinds of games.
Second was the electrical gremlins that have haunted this rig since day one. They have included the radio turning on by itself, garage door opener not working until the engine was shut off and restarted, all the text info in the info center, radio, and climate control turning off when the auto headlights turned on and several more.
With all the computers on these rigs any more, having good consistent grounds is a must.
Two things headed me that direction. One was a similar expeience with a Chev big block a few years ago. Bad grounding between the engine and chasis was playing all kinds of games.
Second was the electrical gremlins that have haunted this rig since day one. They have included the radio turning on by itself, garage door opener not working until the engine was shut off and restarted, all the text info in the info center, radio, and climate control turning off when the auto headlights turned on and several more.
With all the computers on these rigs any more, having good consistent grounds is a must.
